package com.yc.myspringboot.mapper;

import java.util.List;

import org.springframework.stereotype.Repository;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.yc.myspringboot.po.DemoPo;

@Repository
public interface DemoMapper extends BaseMapper<DemoPo> {

	List<DemoPo> myselect(DemoPo demo);
	
	int existTable();
	
	void dropTable();
	
	void createNewTable();
}
